3 Replies Latest reply on Oct 21, 2014 11:58 AM by ArvindS_76 Branched to a new discussion.

    Does I2C write have length limitation? (How about size > 16B)

      HW: 20737.

      SW: SDK2.1

       

      Problem: Use I2C driver API,

      cfa_bsc_OpExtended(buffer, length, NULL, 0, slave_address,I2C_SLAVE_OPERATION_WRITE);

      where if the length > 16B, like length = 32B, from I2C monitor,
      the write action will only take 16B into I2C bus.

       

      Symptom:

      I try to make a I2C write to one device component;

      size = 33B

      40 43 33 00 10 68 1C 6B 09 79 0C 80 00 C8 00 32 00 14 03 E8 01 00 C8 10 04 00 0A 10 5E FF CE FF CE

       

      after calling I2C API,

      the data is truncated into 2 section and plz see the attached snapshot.

       

      Is any place to configure the I2C max. size?